1. Home
  2. ICD-10-CM Codes
  3. A00–B99
  4. A50-A64
  5. A52
  6. 2026 ICD-10-CM Code A52

2026 ICD-10-CM Diagnosis Code A52

Late syphilis

ICD-10-CM Code:
A52
ICD-10 Code for:
Late syphilis
Is Billable?
Not Valid for Submission
Code Navigator:

A52 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity from the list below for a diagnosis of late syphilis. The code is not specific and is NOT valid for the year 2026 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Late syphilis

Non-specific codes like A52 require more digits to indicate the appropriate level of specificity. Consider using any of the following billable codes with a higher level of specificity when coding for late syphilis:

  • A52.0 for Cardiovascular and cerebrovascular syphilis

  • Use A52.00 for Cardiovascular syphilis, unspecified

  • Use A52.01 for Syphilitic aneurysm of aorta

  • Use A52.02 for Syphilitic aortitis

  • Use A52.03 for Syphilitic endocarditis

  • Use A52.04 for Syphilitic cerebral arteritis

  • Use A52.05 for Other cerebrovascular syphilis

  • Use A52.06 for Other syphilitic heart involvement

  • Use A52.09 for Other cardiovascular syphilis

  • A52.1 for Symptomatic neurosyphilis

  • Use A52.10 for Symptomatic neurosyphilis, unspecified

  • Use A52.11 for Tabes dorsalis

  • Use A52.12 for Other cerebrospinal syphilis

  • Use A52.13 for Late syphilitic meningitis

  • Use A52.14 for Late syphilitic encephalitis

  • Use A52.15 for Late syphilitic neuropathy

  • Use A52.16 for Charcot's arthropathy (tabetic)

  • Use A52.17 for General paresis

  • Use A52.19 for Other symptomatic neurosyphilis

  • Use A52.2 for Asymptomatic neurosyphilis

  • Use A52.3 for Neurosyphilis, unspecified

  • A52.7 for Other symptomatic late syphilis

  • Use A52.71 for Late syphilitic oculopathy

  • Use A52.72 for Syphilis of lung and bronchus

  • Use A52.73 for Symptomatic late syphilis of other respiratory organs

  • Use A52.74 for Syphilis of liver and other viscera

  • Use A52.75 for Syphilis of kidney and ureter

  • Use A52.76 for Other genitourinary symptomatic late syphilis

  • Use A52.77 for Syphilis of bone and joint

  • Use A52.78 for Syphilis of other musculoskeletal tissue

  • Use A52.79 for Other symptomatic late syphilis

  • Use A52.8 for Late syphilis, latent

  • Use A52.9 for Late syphilis, unspecified

Code Classification

  • Certain infectious and parasitic diseases
    A00–B99
    • Infections with a predominantly sexual mode of transmission
      A50-A64
      • Late syphilis
        A52

Patient Education


Syphilis

Syphilis is a sexually transmitted infection (STI) caused by bacteria. It infects the genital area, lips, mouth, or anus of both men and women. You usually get syphilis from sexual contact with someone who has it. It can also pass from mother to baby during pregnancy.

The early stage of syphilis usually causes a single, small, painless sore. Sometimes it causes swelling in nearby lymph nodes. If you do not treat it, syphilis usually causes a non-itchy skin rash, often on your hands and feet. Many people do not notice symptoms for years. Symptoms can go away and come back.

The sores caused by syphilis make it easier to get or give someone HIV during sex. If you are pregnant, syphilis can cause complications, or you could lose your baby. In rare cases, syphilis causes serious health problems and even death.

Syphilis is easy to cure with antibiotics if you catch it early. Correct usage of latex condoms greatly reduces, but does not completely eliminate, the risk of catching or spreading syphilis. If your or your partner is allergic to latex, you can use polyurethane condoms. The most reliable way to avoid infection is to not have anal, vaginal, or oral sex.

Centers for Disease Control and Prevention


[Learn More in MedlinePlus]

Code History

  • FY 2026 - No Change, effective from 10/1/2025 through 9/30/2026
  • FY 2025 - No Change, effective from 10/1/2024 through 9/30/2025
  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.